# NTSB ANC84LA040: Cessna 170B, N2715D, Iliamna, AK, March 6, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 6, 1984, 10:45 local (14:45 UTC)
- Place: Iliamna, AK
- Coordinates: 59.850162, -154.56018 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=59.8502&lon=-154.5602&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 4272
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC84LA040
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/4272/pdf
- Page: https://openairdocs.org/ntsb/ANC84LA040

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Airframe/component/system failure/malfunction, cruise - normal
  - cooling system,cowling - loose (contributing factor)
  - aircraft preflight - improper, pilot in command (cause)
  - cooling system,cowling - unlocked (contributing factor)
- Forced landing, landing - flare/touchdown
  - precautionary landing - performed, pilot in command
- Loss of control - on ground/water, landing - roll
  - terrain condition - none suitable (contributing factor)
  - directional control - not possible, pilot in command
  - ground loop/swerve - uncontrolled, pilot in command
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - snowbank (contributing factor)

## Analysis

THE ACFT COWLING CAME UNFASTENED DURING CRUISE AND THE PLT ELECTED TO MAKE A PRECAUTIONARY LANDING. DURING THE LANDING, THE PLT LOST DIRECTIONAL CONTROL AND COLLIDED WITH A SNOWBANK.

## Aircraft

- Registration: [N2715D](https://openairdocs.org/aircraft/N2715D), registered now, S/N 25257, built 1952 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25257
- Engines: CONTINENTAL C-145 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Robert L. Rose
- Registered owner: Gilman L. Hall
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, October 6, 1983, 60 hours before
- Departed: DANIEL LAKE, AK

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 1,100 total, 33 in this make and model, 1,000 as pilot in command, 10 in the last 90 days, 5 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 39 °F, dew point 14 °F

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19840306006049A](https://openairdocs.org/incident/19840306006049A), Mar 6, 1984: Cessna 170B, Iliamna, AK, Substantial damage. Lost directional control on precautionary landing made due to a loose engine cowling. Aircraft struck a snowbank.

## Other investigations on N2715D (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB MIA95LA198](https://openairdocs.org/ntsb/MIA95LA198), Aug 9, 1995: Cessna 170B (N2715D), Titusville, FL, substantial damage. Probable cause: LOSS OF DIRECTIONAL CONTROL DURING THE LANDING ROLL. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S LIMITED EXPERIENCE IN THE MAKE AND MODEL AIRPLANE.
- [NTSB ANC78DAG28](https://openairdocs.org/ntsb/ANC78DAG28), Mar 2, 1978: Cessna 170 (N2715D), Kenai, AK, substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.